Which three tribes occupied regions of the southeast?
a.)pequot
b.)cherokee
c.)iroquois
d.)seminole
e.)powhatan

It refers to five Native American nations—the Cherokee,Chickasaw, Choctaw, Creek(Muscogee), and Seminole. These are the first five tribes thatAnglo-European settlers generally considered to be "civilized" according to their own worldview.

Explanation:

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.

soviet influence spread across eastern europe sharply during and after wwii. the soviet armies liberated the countries in eastern europe and occupied them from the germans as they were forced to retreat towards germany.